OLED Display Touch Screen Single FPC Connector Integration

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Organic light emitting diode (OLED) display devices with touch screens require multiple flexible printed circuit (FPC) connectors, increasing component costs and device thickness, and complicating product design due to the need for precise connector placement.

Innovation Solution

The OLED display device integrates touch functionality by using a single FPC connector that connects both the display panel and touch screen through pad contact holes and a metal conduction means, eliminating the need for separate connectors and simplifying the design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate FPC connectors are used for display panel and touch screen, then connection reliability is improved, but device thickness and component cost increase

Engineering Contradiction:
Improveconnection reliabilityVSAvoiddevice thickness
Core Design Contradiction:
ReliabilityVSLength of stationary object

Solution Approach 1:

The patent combines the FPC connectors for the display panel and touch screen into a single integrated connector structure. The connector includes a first FPC connector for the display panel and a second FPC connector for the touch screen that are merged into one unified component, eliminating the need for separate connectors and reducing overall device thickness while maintaining reliable electrical connections for both functions.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated FPC connector serves multiple functions simultaneously - it provides electrical connections for both the display panel and the touch screen through its multiple terminals. This multi-functional design allows a single connector to replace what would traditionally require separate connectors, reducing component count and device thickness while maintaining all necessary connection capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If separate FPC connectors are used for display panel and touch screen, then connection reliability is improved, but manufacturing cost increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent combines the FPC connectors for the display panel and touch screen into a single integrated connector structure. The connector includes a first FPC connector for the display panel and a second FPC connector for the touch screen that are merged into one unified component, eliminating the need for separate connectors and reducing overall device thickness while maintaining reliable electrical connections for both functions.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated FPC connector serves multiple functions simultaneously - it provides electrical connections for both the display panel and the touch screen through its multiple terminals. This multi-functional design allows a single connector to replace what would traditionally require separate connectors, reducing component count and device thickness while maintaining all necessary connection capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If multiple FPC connectors are used, then connection reliability is improved, but design flexibility decreases

Engineering Contradiction:
Improveconnection reliabilityVSAvoiddesign flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent combines the FPC connectors for the display panel and touch screen into a single integrated connector structure. The connector includes a first FPC connector for the display panel and a second FPC connector for the touch screen that are merged into one unified component, eliminating the need for separate connectors and reducing overall device thickness while maintaining reliable electrical connections for both functions.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated FPC connector serves multiple functions simultaneously - it provides electrical connections for both the display panel and the touch screen through its multiple terminals. This multi-functional design allows a single connector to replace what would traditionally require separate connectors, reducing component count and device thickness while maintaining all necessary connection capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution reduces the number of components, lowers manufacturing costs, and allows for a thinner, lighter OLED display device with improved design flexibility by using a single FPC connector for both the display and touch functions.

Implementation Method 1

organic light emitting diodes in the display area over the first substrate

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Implementation Method 2

a conduction means is disposed in each of the pad contact holes and electrically connects each of the touch pads with a corresponding second pad

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS9501165B2Organic light emitting diode display device with touch screen and method of fabricating the same
Publication Date: 2016.11.22 LG DISPLAY CO LTD
  • US9501165B2 patent drawing
  • US9501165B2 patent drawing
  • US9501165B2 patent drawing

AI summary

An OLED display device with a touch screen includes first and second substrates; organic light emitting diodes in the display area over the first substrate; first pads and second pads in the non-display area over the first substrate; first and second touch electrodes in the display area over the second substrate; touch pads in the non-display area over the second substrate and corresponding to and overlapping the second pads, respectively; and a first adhesive layer between the first and second substrates and exposing the first and second pads, wherein pad contact holes pass through the second substrate, the touch pads, and the first adhesive layer and expose the second pads, respectively, and wherein a conduction means is disposed in each of the pad contact holes and electrically connects each of the touch pads with a corresponding second pad.